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Bug #409

open

DAT: received packet on bat0.20/eth0 with own address as source address

Added by Matteo Fortini almost 4 years ago. Updated almost 4 years ago.

Status:
In Progress
Priority:
Normal
Target version:
-
Start date:
04/22/2020
Due date:
% Done:

0%

Estimated time:

Description

I have a batman-adv network with four (openwrt 19.07.2) nodes on an 802.11s mesh, two of which are connected by ethernet, too:

  • batman is active on the mesh interface for all nodes, has two VLANs defined (bat0.20 and bat0.107).
    • bat0.20 is the "private" VLAN and is bridged to the ethernet network and a wifi SSID*
  • bat0.107 is bridged to a secondary wifi SSID
  • All the bridges have STP off, while batman has bl active
    • batman-adv is correctly finding the backbone and the two wired nodes see each other as neighbors in the bbt.
  • I changed the MAC address of all wifi interfaces and of the wired ones so that I have no duplicate MAC addresses on the network. See mac address...

In the logs I have every 30s or so the "received packet on bat0.20 with own address..." message.

I can reproduce the problem with DAT enabled, if I disable DAT just on the offending nodes, the problem goes away

Moreover, sometimes the message is repeated much more frequently, as you can see here (the MAC address is unique in all the network):

See log...


Related issues 1 (0 open1 closed)

Related to batman-adv - Bug #170: br-lan: received packet on bat0 with own address as source addressClosedAntonio Quartulli05/06/2013

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